Matsuura, Ryouta http://orcid.org/0000-0002-8256-4920
Yunoki, Takahiro
Shirakawa, Kazuki
Ohtsuka, Yoshinori
Funding for this research was provided by:
JSPS KAKENHI (25871146)
Article History
Received: 16 December 2019
Accepted: 3 June 2020
First Online: 12 June 2020
Compliance with ethical standards
:
: There are no conflicts of interest, financial or otherwise to report, regarding this manuscript.
: The experimental procedures were carried out in accordance with the Declaration of Helsinki. The Ethics Committee of the Joetsu University of Education approved the study (approval number 26-41).
: All subjects gave written informed consent to participate in the study.